forget, bearfoil,
Before this gets out of proportion....
Don't forget, that the aircraft did not just get about a foot longer at Mach 2, but it also changed shape, due both through the aerodynamic heating, and the various forces.
IIRC during the test flying there were various tweaks to the leading edge and the wing shape to fully account for those effects.
And go and have a look inside the wing, and you'll find a multitude of adjustable rods, that determined the final wing shape during production, and afterwards.
Small differences between aircraft could have disproportionate effects.
CJ